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111 lines
2.7 KiB
111 lines
2.7 KiB
3 months ago
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--source include/invisible_indexes.inc
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--echo #
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--echo # Tests that don't work on MyISAM ( native partitioning, indexes on
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--echo # generated columns, etc.)
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--echo #
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--echo #
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--echo # Partitioning on keys with an invisible index, invisible indexes over
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--echo # partitioned tables.
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--echo #
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CREATE TABLE t1 (
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a CHAR(2) NOT NULL,
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b CHAR(2) NOT NULL,
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c INT(10) UNSIGNED NOT NULL,
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d VARCHAR(255) DEFAULT NULL,
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e VARCHAR(1000) DEFAULT NULL,
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KEY (a) INVISIBLE,
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KEY (b)
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) PARTITION BY KEY (a) PARTITIONS 20;
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INSERT INTO t1 (a, b, c, d, e) VALUES
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('07', '03', 343, '1', '07_03_343'),
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('01', '04', 343, '2', '01_04_343'),
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('01', '06', 343, '3', '01_06_343'),
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('01', '07', 343, '4', '01_07_343'),
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('01', '08', 343, '5', '01_08_343'),
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('01', '09', 343, '6', '01_09_343'),
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('03', '03', 343, '7', '03_03_343'),
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('03', '06', 343, '8', '03_06_343'),
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('03', '07', 343, '9', '03_07_343'),
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('04', '03', 343, '10', '04_03_343'),
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('04', '06', 343, '11', '04_06_343'),
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('05', '03', 343, '12', '05_03_343'),
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('11', '03', 343, '13', '11_03_343'),
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('11', '04', 343, '14', '11_04_343');
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ANALYZE TABLE t1;
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EXPLAIN SELECT a FROM t1;
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EXPLAIN SELECT b FROM t1;
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EXPLAIN SELECT * FROM t1 WHERE a = '04';
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ALTER TABLE t1 ALTER INDEX a VISIBLE;
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EXPLAIN SELECT a FROM t1;
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EXPLAIN SELECT * FROM t1 WHERE a = '04';
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ALTER TABLE t1 ALTER INDEX b INVISIBLE;
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EXPLAIN SELECT b FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 ( a INT GENERATED ALWAYS AS (1), KEY (a) INVISIBLE );
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SHOW INDEXES FROM t1;
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EXPLAIN SELECT a FROM t1;
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DROP TABLE t1;
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--echo #
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--echo # Test that referential constraints implemented by the indexes are still
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--echo # enforced while the index is invisible.
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--echo #
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CREATE TABLE t1p ( a INT KEY );
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CREATE TABLE t1c ( t1p_a INT );
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ALTER TABLE t1c ADD CONSTRAINT FOREIGN KEY ( t1p_a ) REFERENCES t1p( a );
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ALTER TABLE t1c ALTER INDEX t1p_a INVISIBLE;
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--error ER_NO_REFERENCED_ROW_2
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INSERT INTO t1c VALUES ( 1 );
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SELECT * FROM t1c;
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DROP TABLE t1c, t1p;
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--echo #
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--echo # Bug#25837038: FEATURE REQUEST : USE INVISIBLE INDEXES SPECIFIC QUERY
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--echo #
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CREATE TABLE t1 ( a INT, KEY( a ) INVISIBLE );
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INSERT INTO t1 VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
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--replace_column 10 X
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EXPLAIN SELECT a FROM t1;
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--connect ( con1, localhost, root, , )
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--connection con1
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SELECT @@optimizer_switch;
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--replace_column 10 X
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EXPLAIN SELECT a FROM t1;
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SET @@optimizer_switch='use_invisible_indexes=on';
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--replace_column 10 X
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EXPLAIN SELECT a FROM t1;
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--connection default
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SELECT @@optimizer_switch;
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--replace_column 10 X
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EXPLAIN SELECT a FROM t1;
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--connection con1
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SELECT @@optimizer_switch;
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SET @@optimizer_switch='use_invisible_indexes=off';
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--replace_column 10 X
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EXPLAIN SELECT a FROM t1;
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--disconnect con1
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--connection default
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--replace_column 10 X
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EXPLAIN SELECT a FROM t1;
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DROP TABLE t1;
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